WO2019027527A1 - Structures de film stratifié entièrement en polyéthylène ayant une couche adhésive barrière - Google Patents

Structures de film stratifié entièrement en polyéthylène ayant une couche adhésive barrière Download PDF

Info

Publication number
WO2019027527A1
WO2019027527A1 PCT/US2018/031722 US2018031722W WO2019027527A1 WO 2019027527 A1 WO2019027527 A1 WO 2019027527A1 US 2018031722 W US2018031722 W US 2018031722W WO 2019027527 A1 WO2019027527 A1 WO 2019027527A1
Authority
WO
WIPO (PCT)
Prior art keywords
recyclable
film layer
polyethylene laminate
laminate film
layer
Prior art date
Application number
PCT/US2018/031722
Other languages
English (en)
Inventor
Kalyan Sehanobish
Amira A. MARINE
Daniele Vinci
Original Assignee
Dow Global Technologies Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dow Global Technologies Llc filed Critical Dow Global Technologies Llc
Priority to CN201880057047.8A priority Critical patent/CN111051053A/zh
Priority to US16/634,944 priority patent/US11472167B2/en
Priority to RU2020107473A priority patent/RU2768814C2/ru
Priority to MX2020001151A priority patent/MX2020001151A/es
Priority to BR112020002091-5A priority patent/BR112020002091B1/pt
Priority to JP2020504704A priority patent/JP7216706B2/ja
Priority to EP18734652.3A priority patent/EP3661741A1/fr
Publication of WO2019027527A1 publication Critical patent/WO2019027527A1/fr
Priority to US17/852,446 priority patent/US11858242B2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B32B2250/242—All polymers belonging to those covered by group B32B27/32
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/31—Heat sealable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/72—Density
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7244—Oxygen barrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/40—Closed containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/40—Closed containers
    • B32B2439/46—Bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2553/00—Packaging equipment or accessories not otherwise provided for

Definitions

  • the instant disclosure relates to laminate film structures including an adhesive layer having gas barrier properties.
  • the disclosed laminate film structures comprise first and second substrates, e.g. , films, bonded together with an adhesive composition, the adhesive composition having gas barrier properties.
  • the films used in the disclosed laminate structures consistent essentially of only ethylene-based polymers, thereby enabling recyclable packaging solutions suitable for use in applications requiring gas barrier performance.
  • Polymer materials are widely used for packaging purposes. These polymer materials find extensive application in the food and drug industries. In these and other uses, exposure of the packaged product to oxygen and/or other gases may be highly undesirable. This is particularly the case where exposure to such gases results in degradation of the packaged product over time. Unfortunately, many polymeric films are inherently relatively permeable to gases.
  • One approach to enhancing gas barrier properties that has been investigated has been to use multiple layers of such polymeric materials, with the layers bonded together with an adhesive to form laminates. In some instances, the polymer material layers and/or the adhesives are selected for gas barrier properties.
  • the film layer itself is imparted with barrier functions.
  • a widely used barrier coating material is vinylidene chloride, which exhibits superior oxygen-barrier properties and water vapor-barrier properties, but there are problems associated with the use of vinylidene chloride, including the generation of dioxin when the material is incinerated during disposal.
  • polyvinyl alcohol resins and ethylene-polyvinyl alcohol copolymers have also been used as barrier coating materials, but although these materials exhibit favorable oxygen-barrier properties under low humidity, they suffer from poor oxygen-barrier properties under high humidity, and inferior boiling resistance and retort resistance.
  • films having a vapor deposited layer of a metal such as aluminum provided as a gas barrier layer are opaque, meaning the internal contents cannot be viewed, and are also unable to be used in microwave ovens. Further, films having a vapor deposited layer of a metal oxide such as silica or alumina provided as a gas barrier layer are expensive, and suffer from poor flexibility, resulting in a large variation in the gas barrier properties due to cracking and pinholes.
  • Recyclable, all-polyethylene laminate film structures having a barrier adhesive layer are disclosed herein.
  • the disclosed laminate film structures are suitable for use in, for example, flexible packaging applications.
  • the disclosed recyclable, all-polyethylene laminate film structures include a film layer consisting essentially of an ethylene -based polymer and a barrier adhesive layer disposed on a surface of the film layer, wherein the recyclable, all-polyethylene laminate film structure has an oxygen transmission rate not greater than 100 02/m 2 /day, measured according to ASTM Method D3985.
  • the barrier adhesive layer can comprise a solvent-based adhesive, a water-based adhesive, and/or a solventless adhesive.
  • the recyclable, all-polyethylene laminate film structures comprise one or more layers including a sealant film layer consisting essentially of an ethylene - based polymer, an intermediate film layer consisting essentially of an ethylene-based polymer, a structural film layer consisting essentially of an ethylene-based polymer, and a barrier adhesive layer, wherein the recyclable, all-polyethylene laminate film structure has an oxygen transmission rate not greater than 100 02/m 2 /day, measured according to ASTM Method D3985.
  • the barrier adhesive layer comprises an adhesive comprising an isocyanate component and an isocyanate-reactive component.
  • the isocyanate component comprises a single species of polyisocyanate.
  • the isocyanate-reactive component comprises a hydroxyl-terminated polyester incorporated as substantially-miscible solids in a carrier solvent, the polyester formed from a single species of a linear aliphatic diol having terminal hydroxyl groups and from 2 to 10 carbon atoms, and a linear dicarboxylic acid, the polyester having a number average molecular weight from 300 to 5,000 and being solid at 25 °C, and having a melting point of 80°C or below.
  • Articles comprising the disclosed recyclable, all-polyethylene laminate film structures are also disclosed.
  • the disclosed articles include, e.g. , flexible packages, pouches, stand-up pouches, bags, etc.
  • the present disclosure provides for laminate structures that advantageously combine ethylene-based films with barrier adhesives that advantageously provide desirable gas transmission properties with an improved compatibility/recyclability profile.
  • Figure 1 illustrates a schematic representation of a recyclable, all -poly ethylene laminate structure including a barrier adhesive layer, according to this disclosure.
  • recyclable, all-polyethylene laminate film structure suitable for use in a flexible packaging are disclosed herein.
  • the disclosed film structures are "all- polyethylene” in that they include only films consisting essentially of ethylene-based polymers.
  • ethylene-based polymer(s) means polymers comprising greater than 50% by weight of units which have been derived from ethylene monomer. This includes polyethylene homopolymers and interpolymers.
  • Polymer means a macromolecular compound prepared by reacting (i.e. , polymerizing) monomers of the same or different type, and includes homopolymers and interpolymers.
  • Interpolymer means a polymer prepared by the polymerization of at least two different monomer types.
  • Ethylene- based polymers suitable for use in the recyclable, all-polyethylene laminate structures disclosed herein include ethylene homopolymers, long chain branched ethylene polymers, ethylene- alpha-olefin interpolymers where the alpha-olefin moiety can be C2 to C10.
  • ethylene-based polymers suitable for use in the recyclable, all-polyethylene laminate structures disclosed herein include Low Density Polyethylene (“LDPE”); Linear Low Density Polyethylene (“LLDPE”); Ultra Low Density Polyethylene (“ULDPE”); Very Low Density Polyethylene (“VLDPE”); single site catalyzed Linear Low Density Polyethylene, including both linear and substantially linear low density resins (“m-LLDPE”); Medium Density Polyethylene (“MDPE”); and High Density Polyethylene (“HDPE”).
  • LDPE Low Density Polyethylene
  • LLDPE Linear Low Density Polyethylene
  • ULDPE Ultra Low Density Polyethylene
  • VLDPE Very Low Density Polyethylene
  • m-LLDPE linear low density resins
  • MDPE Medium Density Polyethylene
  • HDPE High Density Polyethylene
  • LDPE low density polyethylene polymer
  • high pressure ethylene polymer or “highly branched polyethylene” and is defined to mean that the polymer is partly or entirely homopolymerized or copolymerized in autoclave or tubular reactors at pressures above 14,500 psi (100 MPa) with the use of free-radical initiators, such as peroxides (see for example US 4,599,392, which is hereby incorporated by reference).
  • LDPE resins typically have a density in the range of 0.916 to 0.940 g/cm 3 .
  • LLDPE includes both resin made using the traditional Ziegler-Natta catalyst systems as well as single-site catalysts such as metallocenes (sometimes referred to as "m-LLDPE”) and includes linear, substantially linear or heterogeneous polyethylene copolymers or homopolymers.
  • LLDPEs contain less long chain branching than LDPEs and includes the substantially linear ethylene polymers which are further defined in U.S. Patent 5,272,236, U.S. Patent 5,278,272, U.S. Patent 5,582,923 and US Patent 5,733, 155; the homogeneously branched linear ethylene polymer compositions such as those in U.S. Patent No.
  • the LLDPEs can be made via gas-phase, solution-phase or slurry polymerization or any combination thereof, using any type of reactor or reactor configuration known in the art, with gas and slurry phase reactors being most preferred.
  • MDPE refers to polyethylenes having densities from 0.926 to 0.940 g/cm3.
  • MDPE is typically made using chromium or Ziegler-Natta catalysts or using metallocene, constrained geometry, or single site catalysts, and typically have a molecular weight distribution (“MWD”) greater than 2.5.
  • HDPE refers to polyethylenes having densities greater than about 0.940 g/cm3, which are generally prepared with Ziegler-Natta catalysts, chrome catalysts or even metallocene catalysts.
  • the film structures disclosed herein can be subjected to a secondary machine direction or bi-axial stretching process to provide machine direction oriented or bi-axially oriented structures.
  • Melt index Melt indices h and Iio are measured in accordance to ASTM D-1238 at
  • the laminate film structures comprise a film layer consisting essentially of an ethylene-based polymer and a barrier adhesive layer disposed on a surface of the film layer.
  • the recyclable, all-polyethylene laminate film structure has an oxygen transmission rate not greater than 100 02/m 2 /day, measured according to ASTM Method D3985.
  • the barrier adhesive layer comprises a solvent-based adhesive, a water-based adhesive, and/or or a solventless adhesive.
  • the all-polyethylene laminate film structures comprise a sealant film layer consisting essentially of an ethylene-based polymer, an intermediate film layer consisting essentially of an ethylene-based polymer, a structural film layer consisting essentially of an ethylene-based polymer, and a barrier adhesive layer.
  • FIG. 1 provides a schematic illustration of a disclosed recyclable, all-polyethylene laminate structure.
  • the recyclable, all-polyethylene laminate film structure 100 includes a first film layer 102 bonded to a second film layer 104 by way of a barrier adhesive layer 106.
  • the first film layer 102 and the second film layer 104 are each coextruded film layers comprising multiple films therein.
  • the first film layer 102 and the second film layer 104 can be coextruded, multi-layer structures, as indicated in FIG. 1, or can be mono-layer films.
  • the first film layer 102 can include a structural film layer 120.
  • the structural film layer 120 can consist essentially of any polyethylene polymer material.
  • the structural film layer 120 can include an ethylene/octene copolymer material and a LDPE material.
  • suitable LDPE materials have a density not greater than 0.94 g/cm 3 and a peak melting point not greater than 126°C.
  • Suitable ethylene/octene copolymer materials for use according to this disclosure include those sold by The Dow Chemical Company under the ELITETM name, e.g. , ELITETM 5400G.
  • Suitable LDPE materials for use according to this disclosure include those sold by The Dow Chemical Company under the AGILITYTM name, e.g. , AGILITYTM 1021.
  • Structure film layer 120 may further include a slip additive, an anti-block additive, and any other additive suitable for use in a laminate film.
  • the first film layer 102 can further include one or more intermediate film layers 110, 112, 114, 116, 118.
  • the one or more intermediate film layers 110, 112, 114, 116, 118 can consist essentially of any polyethylene polymer material.
  • the one or more intermediate film layers 110, 112, 114, 116, 118 can include a HDPE material.
  • suitable HDPE materials have a density not less than 0.94 g/cm 3 and a peak melting point in the range of from 120 to 135°C.
  • Suitable HDPE materials for use according to this disclosure include those sold by The Dow Chemical Company under the ELITETM name, e.g. , ELITETM 5960G.
  • the one or more intermediate film layers 110, 112, 114, 116, 118 can include an ethylene/octene copolymer material and a LDPE material.
  • the first film layer 102 can still further include a sealant layer 108.
  • the sealant layer 108 can consist essentially of any polyethylene polymer material.
  • the sealant layer 108 can be a polyolefin plastomer material. Suitable polyolefin plastomer materials for use according to this disclosure include those sold by The Dow Chemical Company under the AFFINITYTM name, e.g. , AFFINITYTM 1146G.
  • the sealant layer 108 and structural layer 120 form the outer layers of the first film layer 102, and the intermediate layers 110, 112, 114, 116, 118 are disposed between the sealant film layer 108 and the structural film layer 120.
  • the barrier adhesive layer 106 is disposed on a lower surface of the structural film layer 120 in FIG. 1.
  • the second film layer 104 is bonded to the first film layer 102 by way of the barrier adhesive layer 106.
  • the barrier adhesive layer 106 contacts the structural film layer 122 of the second film layer 104. While suitable barrier adhesive layer 106 components are discussed in greater detail below, the barrier adhesive layer 106 can be solvent-based, water-based, or solventless.
  • the second film layer 104 is also a coextruded multi-layer film, wherein the individual films layers mirror those of the first film layer 102 (e.g. , 122 is a structural film layer, 124, 126, 128, 130, 132 are intermediate film layers, and 134 is a sealant film layer).
  • Each film layer 102, 104 can be a multi-layer film, as illustrated in FIG. 1, or a single layer film.
  • each film layer 102, 104 is a single-layer film.
  • one of films layers 102, 104 is a single-layer film while the other film layer is a multi-layer film.
  • the barrier adhesive layer 106 includes an adhesive comprising an isocyanate component and an isocyanate-reactive component.
  • the isocyanate component comprises a single species of polyisocyanate.
  • the polyisocyanate is an aliphatic polyisocyanate.
  • the polyisocyanate is selected from polymeric hexamethylene diisocyanate (HDI trimer isocyanurate), methylene diphenyl diisocyanate, dicyclohexylmethane 4,4 ' -diisocyanate, and toluene diisocyanate.
  • the isocyanate-reactive component comprising a hydroxyl- terminated polyester incorporated as substantially-miscible solids in a carrier solvent, the polyester formed from a single species of a linear aliphatic diol having terminal hydroxyl groups and from 2 to 10 carbon atoms, and a linear dicarboxylic acid, the polyester having a number average molecular weight from 300 to 5,000 and being solid at 25°C, and having a melting point of 80°C or below.
  • the carrier solvent is selected from ethyl acetate, methyl ethyl ketone, dioxolane, acetone, and combinations thereof.
  • the hydroxyl-terminated polyester is formed from a C3 to C 6 diol and a dicarboxylic acid selected from adipic acid, azelaic acid, sebacic acid, and combinations thereof.
  • the isocyanate -reactive component further includes an acrylate viscosity modifier.
  • the weight ratio of the isocyanate component to the isocyanate- reactive component in the barrier adhesive layer is from 1:1 to 2: 1.
  • Articles comprising the disclosed recyclable, all-polyethylene laminate film structure are also disclosed.
  • the articles include flexible packaging and stand-up pouches.
  • the Examples are fabricated using a LABO COMB ITM 400 laminator.
  • the settings on the laminator include a treatment setting of IKW, with tensions at 3.6 lbs for the primary, 4.2 lbs for the secondary, and 7.4 lbs for the rewind roller.
  • a barrier adhesive is coated on a multi- layer polyethylene film via gravure cylinder.
  • For the gravure cylinder a 130 quad with 15 BCM is used. The adhesive is applied at a coating weight of about 3 g/m 2 .
  • the barrier adhesive comprises a crystallizable polyester resin comprising a hydroxyl-terminated polyester incorporated as substantially-miscible solids in a carrier solvent, the polyester formed from a single species of a linear aliphatic diol having terminal hydroxyl groups and from 2 to 10 carbon atoms, and a linear dicarboxylic acid, the polyester having a number average molecular weight from 300 to 5,000 and being solid at 25 °C, and having a melting point of 80°C or below.
  • the barrier adhesive further comprises an aliphatic isocyanate crosslinker.
  • the coated film is then passed through a three-zoned oven with temperatures set at 90°C first zone, 100°C second zone, and 110°C third zone.
  • the polyethylene film coated with barrier adhesive is then nipped to another multi-layer polyethylene film of the same composition under a heated steel roll at a temperature of 90°C and a nip pressure set to 40 psi.
  • the laminated structure is then passed to a chill roll of a temperature of 17°C.
  • the laminate structure is then placed in a temperature control room to cure at 23 °C and 50% relative humidity for 7 days.
  • Illustrative Example 1 is a laminate structure including two multi-layered film structures each having 7 film layers.
  • each structure includes a sealant layer comprising 95 wt% AFFINITYTM 1146G with the remaining weight including slip additive, a filler layer adjacent to and in contact with the sealant layer and comprising 85 wt% ELITETM 5400G, and 15 wt% AGILITYTM 1021, a first filler layer adjacent to and in contact with the sealant layer and comprising 100 wt% ELITETM 5960G, a second filler layer adjacent to and in contact with the first filler layer and comprising 100 wt% ELITETM 5960G, a third filler layer adjacent to and in contact with the second filler layer and comprising 100 wt% ELITETM 5960G, a fourth filler layer adjacent to and in contact with the third filler layer and comprising 100 wt% ELITETM 5960G, and a structural layer adjacent to and in contact with the fourth filler layer and comprising 82
  • Illustrative Example 2 is a pouch formed using the laminate structure of Illustrative Example 1.
  • Comparative Example 1 is a plain polyethylene film, having no barrier adhesive.
  • the oxygen transmission rates of the laminated structures are tested according to the methods outlined in ASTM Method D3985 (Standard Test Method for Oxygen Gas Transmission Rate through a Plastic Film and Sheeting Using a Coulometric Sensor).
  • the permeability of the laminated structures are tested according to methods outlined in ASTM Method D3985.
  • Oxygen barrier properties are measured for the laminate structures and the permeability is compared.
  • the performance results of the laminate structures are detailed in Table 1.
  • Embodiment 1 A recyclable, all-polyethylene laminate film structure suitable for use in a flexible packaging, comprising:
  • a film layer consisting essentially of an ethylene-based polymer
  • barrier adhesive layer disposed on a surface of the film layer
  • the recyclable, all-polyethylene laminate film structure has an oxygen transmission rate not greater than 100 02/m 2 /day, measured according to ASTM Method D3985.
  • Embodiment 2 The recyclable, all-polyethylene laminate film structure according to any preceding or succeeding Embodiment, wherein the barrier adhesive layer comprises a solvent-based adhesive.
  • Embodiment 3 The recyclable, all-polyethylene laminate film structure according to any preceding or succeeding Embodiment, wherein the barrier adhesive layer comprises a water-based adhesive.
  • Embodiment 4 The recyclable, all-polyethylene laminate film structure according to any preceding or succeeding Embodiment, wherein the barrier adhesive layer comprises a solventless adhesive.
  • Embodiment 5 A recyclable, all-polyethylene laminate film structure suitable for use in a flexible packaging, comprising:
  • the recyclable, all-polyethylene laminate film structure has an oxygen transmission rate not greater than 100 02/m 2 /day, measured according to ASTM Method D3985.
  • Embodiment 6 The recyclable, all-polyethylene laminate film structure according to any preceding or succeeding Embodiment, wherein the sealant film layer (A), intermediate film layer (B), and structural film layer (C) form a coextruded film wherein the intermediate film layer (B) is disposed between the sealant film layer (A) and the structural film layer (C), and wherein the barrier adhesive layer (D) is disposed on a surface of the structural film layer (C) opposite the intermediate film layer (B).
  • Embodiment 7 The recyclable, all-polyethylene laminate film structure according to Embodiment 6, wherein the barrier adhesive layer (D) is in contact with another film layer (E) opposite the structural film layer (A).
  • Embodiment 8 The recyclable, all-polyethylene laminate film structure according to any preceding or succeeding Embodiment, the structure comprising more than one intermediate film layer (B).
  • Embodiment 9 A recyclable, all-polyethylene laminate film structure suitable for use in a flexible packaging, comprising:
  • the recyclable, all-polyethylene laminate film structure has an oxygen transmission rate not greater than 100 02/m 2 /day, measured according to ASTM Method D3985.
  • Embodiment 10 The recyclable, all-polyethylene laminate film structure suitable for use in a flexible packaging, wherein the low density polyethylene has a density not greater than 0.94 g/cm 3 and a peak melting point not greater than 126°C
  • Embodiment 11 The recyclable, all-polyethylene laminate film structure suitable for use in a flexible packaging, wherein the high density polyethylene has a density not less than 0.94 g/cm 3 and a peak melting point in the range of from 120 to 135°C.
  • Embodiment 12 The recyclable, all-polyethylene laminate film structure according to any preceding or succeeding Embodiment, wherein the sealant film layer (A), intermediate film layer (B), and structural film layer (C) form a coextruded film wherein the intermediate film layer (B) is disposed between the sealant film layer (A) and the structural film layer (C), and wherein the barrier adhesive layer (D) is disposed on a surface of the structural film layer (C) opposite the intermediate film layer (B).
  • Embodiment 13 The recyclable, all-polyethylene laminate film structure according to any preceding or succeeding Embodiment, wherein the barrier adhesive layer (D) is in contact with another film layer (E) opposite the structural film layer (A).
  • Embodiment 14 The recyclable, all-polyethylene laminate film structure according to any preceding or succeeding Embodiment, the structure comprising more than one intermediate film layer (B).
  • Embodiment 15 The recyclable, all-polyethylene laminate film structure according to any preceding or succeeding Embodiment, wherein the barrier adhesive layer (D) comprises an adhesive comprising:
  • an isocyanate component comprising a single species of polyisocyanate; and an isocyanate -reactive component comprising a hydroxyl-terminated polyester incorporated as substantially-miscible solids in a carrier solvent, the polyester formed from a single species of a linear aliphatic diol having terminal hydroxyl groups and from 2 to 10 carbon atoms, and a linear dicarboxylic acid, the polyester having a number average molecular weight from 300 to 5,000 and being solid at 25°C, and having a melting point of 80°C or below.
  • Embodiment 16 Embodiment 16.
  • the recyclable, all-polyethylene laminate film structure according to any preceding or succeeding Embodiment, wherein the hydroxyl-terminated polyester is formed from a C3 to C6 diol and a dicarboxylic acid selected from adipic acid, azelaic acid, sebacic acid, and combinations thereof.
  • Embodiment 17 The recyclable, all-polyethylene laminate film structure according to any preceding or succeeding Embodiment, wherein the polyisocyanate is selected from polymeric hexamethylene diisocyanate (HDI trimer isocyanurate), methylene diphenyl diisocyanate, dicyclohexylmethane 4,4 '-diisocyanate, and toluene diisocyanate.
  • the polyisocyanate is selected from polymeric hexamethylene diisocyanate (HDI trimer isocyanurate), methylene diphenyl diisocyanate, dicyclohexylmethane 4,4 '-diisocyanate, and toluene diisocyanate.
  • Embodiment 18 The recyclable, all-polyethylene laminate film structure according to any preceding or succeeding Embodiment, wherein the carrier solvent is selected from ethyl acetate, methyl ethyl ketone, dioxolane, acetone, and combinations thereof.
  • the carrier solvent is selected from ethyl acetate, methyl ethyl ketone, dioxolane, acetone, and combinations thereof.
  • Embodiment 19 The recyclable, all-polyethylene laminate film structure according to any preceding or succeeding Embodiment, wherein the isocyanate -reactive component further comprises an acrylate viscosity modifier.
  • Embodiment 20 The recyclable, all-polyethylene laminate film structure according to any preceding or succeeding Embodiment, wherein the ratio of the isocyanate component to the isocyanate-reactive component in the barrier adhesive layer is from 1 : 1 to 2: 1.
  • Embodiment 21 An article comprising the recyclable, all-polyethylene laminate film structure according to any preceding or succeeding Embodiment.
  • Embodiment 22 The article of Embodiment 21, wherein the article is a flexible package.
  • Embodiment 23 The article of Embodiment 21, wherein the article is a stand-up pouch.

Landscapes

  • Wrappers (AREA)
  • Laminated Bodies (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

L'invention concerne des structures de film stratifié entièrement en polyéthylène recyclable appropriées pour une utilisation dans un emballage souple. Les structures comprennent une couche de film constituée essentiellement d'un polymère à base d'éthylène et d'une couche adhésive barrière disposée sur une surface de la couche de film, la structure ayant un taux de transmission d'oxygène non supérieur à 100 O2/m2/jour, mesuré selon la méthode ASTM D3985. L'invention concerne des structures de film stratifié entièrement en polyéthylène recyclable appropriées pour une utilisation dans un emballage souple comprenant (A) une couche de film d'étanchéité constituée essentiellement d'un polymère à base d'éthylène, (B) d'une couche de film intermédiaire constituée essentiellement d'un polymère à base d'éthylène, (C) d'une couche de film structural constituée essentiellement d'un polymère à base d'éthylène, et (D) d'une couche adhésive barrière, la structure ayant un taux de transmission d'oxygène non supérieur à 100 O2/m2/jour, mesuré selon la méthode ASTM D3985. L'invention concerne également des articles comprenant les structures de film stratifié décrites, tels que des sachets verticaux et d'emballage souples.
PCT/US2018/031722 2017-07-31 2018-05-09 Structures de film stratifié entièrement en polyéthylène ayant une couche adhésive barrière WO2019027527A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CN201880057047.8A CN111051053A (zh) 2017-07-31 2018-05-09 具有阻挡粘着层的全聚乙烯层压膜结构
US16/634,944 US11472167B2 (en) 2017-07-31 2018-05-09 All-polyethylene laminate film structures having barrier adhesive layer
RU2020107473A RU2768814C2 (ru) 2017-07-31 2018-05-09 Полностью полиэтиленовые слоистые пленочные структуры с барьерным адгезивным слоем
MX2020001151A MX2020001151A (es) 2017-07-31 2018-05-09 Estructuras de película laminada completamente de polietileno con capa adhesiva de barrera.
BR112020002091-5A BR112020002091B1 (pt) 2017-07-31 2018-05-09 Estrutura de filme laminado totalmente em polietileno reciclável
JP2020504704A JP7216706B2 (ja) 2017-07-31 2018-05-09 バリア接着層を有する全ポリエチレン積層フィルム構造
EP18734652.3A EP3661741A1 (fr) 2017-07-31 2018-05-09 Structures de film stratifié entièrement en polyéthylène ayant une couche adhésive barrière
US17/852,446 US11858242B2 (en) 2017-07-31 2022-06-29 All-polyethylene laminate film structures having barrier adhesive layer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201762539115P 2017-07-31 2017-07-31
US62/539,115 2017-07-31

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US16/634,944 A-371-Of-International US11472167B2 (en) 2017-07-31 2018-05-09 All-polyethylene laminate film structures having barrier adhesive layer
US17/852,446 Division US11858242B2 (en) 2017-07-31 2022-06-29 All-polyethylene laminate film structures having barrier adhesive layer

Publications (1)

Publication Number Publication Date
WO2019027527A1 true WO2019027527A1 (fr) 2019-02-07

Family

ID=62751523

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2018/031722 WO2019027527A1 (fr) 2017-07-31 2018-05-09 Structures de film stratifié entièrement en polyéthylène ayant une couche adhésive barrière

Country Status (9)

Country Link
US (2) US11472167B2 (fr)
EP (1) EP3661741A1 (fr)
JP (1) JP7216706B2 (fr)
CN (1) CN111051053A (fr)
AR (1) AR112515A1 (fr)
MX (1) MX2020001151A (fr)
RU (1) RU2768814C2 (fr)
TW (1) TW201910461A (fr)
WO (1) WO2019027527A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022125247A1 (fr) 2020-12-08 2022-06-16 Dow Global Technologies Llc Article
WO2022125246A1 (fr) 2020-12-08 2022-06-16 Dow Global Technologies Llc Article
US11858242B2 (en) 2017-07-31 2024-01-02 Dow Global Technologies Llc All-polyethylene laminate film structures having barrier adhesive layer

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114364535A (zh) * 2019-09-20 2022-04-15 诺瓦化学品(国际)股份有限公司 具有再循环聚乙烯的直立小袋
US11987026B2 (en) 2020-05-27 2024-05-21 Proampac Holdings Inc. Recyclable laminated polyolefin-based film structures
MX2022014257A (es) 2020-05-27 2022-12-07 Proampac Holdings Inc Estructuras con una pelicula a base de poliolefina laminada reciclable.
US11718075B2 (en) 2020-07-24 2023-08-08 Proampac Holdings Inc. High clarity, recyclable, polyethylene-based packaging films
JP7201131B2 (ja) * 2020-11-10 2023-01-10 Dic株式会社 ガスバリア性積層体、包装材
US11945196B2 (en) 2021-07-29 2024-04-02 Peak Nano Films, LLC Films and sheets having microlayers and nanolayers including recycled content
WO2024086201A1 (fr) * 2022-10-18 2024-04-25 Dow Global Technologies Llc Stratifié avec film multicouche orienté dans le sens de défilement

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3645992A (en) 1967-03-02 1972-02-29 Du Pont Canada Process for preparation of homogenous random partly crystalline copolymers of ethylene with other alpha-olefins
US3900424A (en) * 1972-07-21 1975-08-19 Nippon Oil Seal Ind Co Ltd Catalyst for copolymerizing epoxy compounds with carbon dioxide
US3914342A (en) 1971-07-13 1975-10-21 Dow Chemical Co Ethylene polymer blend and polymerization process for preparation thereof
US4076698A (en) 1956-03-01 1978-02-28 E. I. Du Pont De Nemours And Company Hydrocarbon interpolymer compositions
US4142021A (en) * 1977-06-01 1979-02-27 Air Products And Chemicals, Inc. Oxygen barrier laminate films including a polyalkylene carbonate adhesive
US4599392A (en) 1983-06-13 1986-07-08 The Dow Chemical Company Interpolymers of ethylene and unsaturated carboxylic acids
US5272236A (en) 1991-10-15 1993-12-21 The Dow Chemical Company Elastic substantially linear olefin polymers
US5278272A (en) 1991-10-15 1994-01-11 The Dow Chemical Company Elastic substantialy linear olefin polymers
US5582923A (en) 1991-10-15 1996-12-10 The Dow Chemical Company Extrusion compositions having high drawdown and substantially reduced neck-in
US5733155A (en) 1995-07-28 1998-03-31 The Whitaker Corporation Female contact
US5854045A (en) 1994-05-12 1998-12-29 The Rockefeller University Transmembrane tyrosine phosphatase and methods of use thereof
WO2000066359A1 (fr) * 1999-05-05 2000-11-09 Mobil Oil Corporation Film multicouche de polyethylene enduit
WO2015175871A1 (fr) * 2014-05-15 2015-11-19 Dow Global Technologies Llc Film barrière, ses procédés de fabrication et des articles en comprenant

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3726825A (en) * 1971-03-15 1973-04-10 Diamond Shamrock Corp Polyurethane coating for moisture vapor barrier
US5491011A (en) 1994-01-25 1996-02-13 Colgate-Palmolive Company Thermoplastic multilayer ethylene polymer sheet for containment of odoriferous product components
UY24071A1 (es) * 1994-10-27 1996-03-25 Coca Cola Co Recipiente y metodo para hacer un recipiente de naftalato de polietileno y copolimeros del mismo
US6124006A (en) 1995-04-19 2000-09-26 Capitol Specialty Plastics, Inc. Modified polymers having controlled transmission rates
TW436517B (en) * 1995-07-27 2001-05-28 Morton Int Inc Aqueous latex adhesive-forming composition and method of making laminate
NZ331408A (en) * 1997-09-17 1999-10-28 Morton Int Inc Solvent free urethane adhesive composition containing a mixture of hydroxy-terminated polyester and diisocyanate
EP1300238B1 (fr) * 2001-09-27 2014-08-27 Flexopack S A Film d'emballage multicouche et son procédé de fabrication
US7486053B2 (en) 2005-06-17 2009-02-03 Hamilton Sundstrand Corporation Power manager for an electrical power generator
EP2149586B1 (fr) 2007-05-21 2018-01-03 Mitsubishi Gas Chemical Company, Inc. Agent de durcissement pour résine amine époxy, composition de résine époxy formant une barrière contre les gaz qui comprend l'agent de durcissement, agent de revêtement et agent adhésif pour stratifié
GB2457294A (en) 2008-02-08 2009-08-12 Sun Chemical Ltd Oxygen barrier coating composition
SE532388C2 (sv) * 2008-03-14 2010-01-12 Tetra Laval Holdings & Finance Förpackningslaminat och -behållare med två separata gasbarriärskikt samt metod för deras framställning
BR112012012120B1 (pt) 2009-11-20 2020-10-27 Sun Chemical B.V. processo para preparação de uma composição de revestimentos para barreira de gás e material laminado adesivamente formado
WO2014136914A1 (fr) 2013-03-06 2014-09-12 三菱瓦斯化学株式会社 Corps multicouches d'absorption d'oxygène, contenant d'absorption d'oxygène, contenant étanche à l'air d'absorption d'oxygène, emballage à pellicule enfonçable d'absorption d'oxygène et procédé de stockage les utilisant
US10961415B2 (en) 2013-10-15 2021-03-30 Dow Global Technologies Llc Method of making laminates having reduced oxygen permeability
CN107636050B (zh) * 2015-05-29 2021-09-24 陶氏环球技术有限责任公司 涂膜和由其形成的包装
WO2017102704A1 (fr) * 2015-12-15 2017-06-22 Borealis Ag Structure de film laminé à base de polyéthylène à propriétés barrières
RU2768814C2 (ru) 2017-07-31 2022-03-24 Дау Глоубл Текнолоджиз Ллк Полностью полиэтиленовые слоистые пленочные структуры с барьерным адгезивным слоем

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4076698B1 (fr) 1956-03-01 1993-04-27 Du Pont
US4076698A (en) 1956-03-01 1978-02-28 E. I. Du Pont De Nemours And Company Hydrocarbon interpolymer compositions
US3645992A (en) 1967-03-02 1972-02-29 Du Pont Canada Process for preparation of homogenous random partly crystalline copolymers of ethylene with other alpha-olefins
US3914342A (en) 1971-07-13 1975-10-21 Dow Chemical Co Ethylene polymer blend and polymerization process for preparation thereof
US3900424A (en) * 1972-07-21 1975-08-19 Nippon Oil Seal Ind Co Ltd Catalyst for copolymerizing epoxy compounds with carbon dioxide
US4142021A (en) * 1977-06-01 1979-02-27 Air Products And Chemicals, Inc. Oxygen barrier laminate films including a polyalkylene carbonate adhesive
US4599392A (en) 1983-06-13 1986-07-08 The Dow Chemical Company Interpolymers of ethylene and unsaturated carboxylic acids
US5272236A (en) 1991-10-15 1993-12-21 The Dow Chemical Company Elastic substantially linear olefin polymers
US5582923A (en) 1991-10-15 1996-12-10 The Dow Chemical Company Extrusion compositions having high drawdown and substantially reduced neck-in
US5278272A (en) 1991-10-15 1994-01-11 The Dow Chemical Company Elastic substantialy linear olefin polymers
US5854045A (en) 1994-05-12 1998-12-29 The Rockefeller University Transmembrane tyrosine phosphatase and methods of use thereof
US5733155A (en) 1995-07-28 1998-03-31 The Whitaker Corporation Female contact
WO2000066359A1 (fr) * 1999-05-05 2000-11-09 Mobil Oil Corporation Film multicouche de polyethylene enduit
WO2015175871A1 (fr) * 2014-05-15 2015-11-19 Dow Global Technologies Llc Film barrière, ses procédés de fabrication et des articles en comprenant

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11858242B2 (en) 2017-07-31 2024-01-02 Dow Global Technologies Llc All-polyethylene laminate film structures having barrier adhesive layer
WO2022125247A1 (fr) 2020-12-08 2022-06-16 Dow Global Technologies Llc Article
WO2022125246A1 (fr) 2020-12-08 2022-06-16 Dow Global Technologies Llc Article

Also Published As

Publication number Publication date
JP2020529935A (ja) 2020-10-15
US11858242B2 (en) 2024-01-02
CN111051053A (zh) 2020-04-21
US20200238674A1 (en) 2020-07-30
US20220324214A1 (en) 2022-10-13
JP7216706B2 (ja) 2023-02-01
US11472167B2 (en) 2022-10-18
RU2768814C2 (ru) 2022-03-24
RU2020107473A (ru) 2021-08-19
BR112020002091A2 (pt) 2020-07-28
RU2020107473A3 (fr) 2021-09-03
EP3661741A1 (fr) 2020-06-10
AR112515A1 (es) 2019-11-06
TW201910461A (zh) 2019-03-16
MX2020001151A (es) 2020-03-24

Similar Documents

Publication Publication Date Title
US11858242B2 (en) All-polyethylene laminate film structures having barrier adhesive layer
CN110621501B (zh) 用于柔性封装的聚乙烯层板
WO2017000339A1 (fr) Structures multicouches et articles les comprenant
JP7192238B2 (ja) 包装材料用ポリエチレン積層体及び該積層体からなる包装材料
CN113195217B (zh) 层压结构和合并有其的软包装材料
JP7192239B2 (ja) 包装材料用ポリエチレン積層体及び該積層体からなる包装材料
CN113165327A (zh) 层压结构和并有其的柔性包装材料
JP2024045489A (ja) 包装材料用ポリエチレン積層体及び該積層体からなる包装材料
JP2010215256A (ja) 電子部品収納容器用蓋材及び電子部品収納容器
JP2022088456A (ja) 包装材料用ポリエチレン積層体及び該積層体からなる包装材料
US11607864B2 (en) Laminate film structures having barrier adhesive layer
CN112512801A (zh) 用于柔性封装材料中的多层膜
TW202019709A (zh) 層壓物及併有層壓物之製品
BR112020002091B1 (pt) Estrutura de filme laminado totalmente em polietileno reciclável
WO2023111735A1 (fr) Stratifié recyclable tout-pe comprenant un revêtement de nanoargile
WO2023104113A1 (fr) Films de revêtement barrière contre les gaz
JP2022079510A (ja) 包装材料用ポリエチレン積層体及び該積層体からなる包装材料
JP2023115082A (ja) 包装材料用ポリエチレン積層体及び該積層体からなる包装材料
JP2023115083A (ja) 包装材料用ポリエチレン積層体及び該積層体からなる包装材料
JPH1177923A (ja) 大容量且つ高温充填及び／又はボイル殺菌可能な包装用積層フィルム
EP3688077A1 (fr) Films partiellement revêtus et emballages formés à partir de ceux-ci

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18734652

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2020504704

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112020002091

Country of ref document: BR

ENP Entry into the national phase

Ref document number: 2018734652

Country of ref document: EP

Effective date: 20200302

ENP Entry into the national phase

Ref document number: 112020002091

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20200131